TITLE

Resonance and nonlinear properties of a crack filled with a drop of liquid

AUTHOR(S)
Didenkulov, I. N.; Yoon, S. W.
PUB. DATE
July 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 524 Issue 1, p283
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An investigation of the vibroacoustic response of a crack is very important for the development of methods of nondestructive evaluation (NDE). Several models of linear and nonlinear elastic properties of a dry crack have been developed earlier. A recently suggested model of the capillary nonlinear elasticity of a crack partially filled in with a drop of liquid (V. E. Nazarov, 1996, 1999) does not take into account inertial properties of the oscillatory motion of the liquid inside a crack. A new crack model filled in with a drop of liquid is proposed and studied in this paper. The model accounts for the oscillatory motion of the liquid in a breathing crack. Both linear and nonlinear elastic properties of such a crack are analytically studied. It is shown that the crack with a drop of non-wetting liquid inside shows resonance behaviour while that with a wetting liquid does not. The resonance properties as well as the nonlinear elasticity of a crack filled in with a drop of liquid may find application in NDE of modern materials.
ACCESSION #
5665279

 

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